vsp1_drm.h

 1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * vsp1_drm.h  --  R-Car VSP1 DRM/KMS Interface
 4 *
 5 * Copyright (C) 2015 Renesas Electronics Corporation
 6 *
 7 * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
 8 */
 9#ifndef __VSP1_DRM_H__
10#define __VSP1_DRM_H__
11
12#include <linux/mutex.h>
13#include <linux/videodev2.h>
14#include <linux/wait.h>
15
16#include <media/vsp1.h>
17
18#include "vsp1_pipe.h"
19
20/**
21 * struct vsp1_drm_pipeline - State for the API exposed to the DRM driver
22 * @pipe: the VSP1 pipeline used for display
23 * @partition: the pre-calculated partition used by the pipeline
24 * @width: output display width
25 * @height: output display height
26 * @force_brx_release: when set, release the BRx during the next reconfiguration
27 * @wait_queue: wait queue to wait for BRx release completion
28 * @uif: UIF entity if available for the pipeline
29 * @crc: CRC computation configuration
30 * @du_complete: frame completion callback for the DU driver (optional)
31 * @du_private: data to be passed to the du_complete callback
32 */
33struct vsp1_drm_pipeline {
34	struct vsp1_pipeline pipe;
35	struct vsp1_partition partition;
36
37	unsigned int width;
38	unsigned int height;
39
40	bool force_brx_release;
41	wait_queue_head_t wait_queue;
42
43	struct vsp1_entity *uif;
44	struct vsp1_du_crc_config crc;
45
46	/* Frame synchronisation */
47	void (*du_complete)(void *data, unsigned int status, u32 crc);
48	void *du_private;
49};
50
51/**
52 * struct vsp1_drm - State for the API exposed to the DRM driver
53 * @pipe: the VSP1 DRM pipeline used for display
54 * @lock: protects the BRU and BRS allocation
55 * @inputs: source crop rectangle, destination compose rectangle, z-order
56 *	position and colorspace for every input (indexed by RPF index)
57 */
58struct vsp1_drm {
59	struct vsp1_drm_pipeline pipe[VSP1_MAX_LIF];
60	struct mutex lock;
61
62	struct vsp1_drm_input {
63		struct v4l2_rect crop;
64		struct v4l2_rect compose;
65		unsigned int zpos;
66		enum v4l2_ycbcr_encoding ycbcr_enc;
67		enum v4l2_quantization quantization;
68	} inputs[VSP1_MAX_RPF];
69};
70
71static inline struct vsp1_drm_pipeline *
72to_vsp1_drm_pipeline(struct vsp1_pipeline *pipe)
73{
74	return container_of(pipe, struct vsp1_drm_pipeline, pipe);
75}
76
77int vsp1_drm_init(struct vsp1_device *vsp1);
78void vsp1_drm_cleanup(struct vsp1_device *vsp1);
79
80#endif /* __VSP1_DRM_H__ */